Finding the Fourth Proportional to 88,921,570.12, 133,379,866.86 and 28,340,931.40

Step by Step Solution

1. Step 1: Write the proportion equation
   88,921,570.12 : 133,379,866.86 = 28,340,931.40 : x
2. Step 2: Convert to fraction form
   88,921,570.12/133,379,866.86 = 28,340,931.40/x
3. Step 3: Cross multiply
   88,921,570.12x = 133,379,866.86 × 28,340,931.40
4. Step 4: Simplify right side
   88,921,570.12x = 3,780,109,656,820,393
5. Step 5: Solve for x
   x = 3,780,109,656,820,393/88,921,570.12
6. Step 6: Final answer
   x = 42,510,604.03