Finding the Fourth Proportional to 42,755,311.84, 64,155,017.04 and 20,038,516.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,755,311.84 : 64,155,017.04 = 20,038,516.96 : x
2. Step 2: Convert to fraction form
   42,755,311.84/64,155,017.04 = 20,038,516.96/x
3. Step 3: Cross multiply
   42,755,311.84x = 64,155,017.04 × 20,038,516.96
4. Step 4: Simplify right side
   42,755,311.84x = 1,285,571,397,025,129
5. Step 5: Solve for x
   x = 1,285,571,397,025,129/42,755,311.84
6. Step 6: Final answer
   x = 30,068,109.47