Finding the Fourth Proportional to 42,897,352,791.15, 64,355,337,758.74 and 13,050,908,250.67

Step by Step Solution

1. Step 1: Write the proportion equation
   42,897,352,791.15 : 64,355,337,758.74 = 13,050,908,250.67 : x
2. Step 2: Convert to fraction form
   42,897,352,791.15/64,355,337,758.74 = 13,050,908,250.67/x
3. Step 3: Cross multiply
   42,897,352,791.15x = 64,355,337,758.74 × 13,050,908,250.67
4. Step 4: Simplify right side
   42,897,352,791.15x = 839,895,608,530,207,506,432
5. Step 5: Solve for x
   x = 839,895,608,530,207,506,432/42,897,352,791.15
6. Step 6: Final answer
   x = 19,579,194,376.38