Finding the Fourth Proportional to 69,914.83, 96,483.12 and 39,700.78

Step by Step Solution

1. Step 1: Write the proportion equation
   69,914.83 : 96,483.12 = 39,700.78 : x
2. Step 2: Convert to fraction form
   69,914.83/96,483.12 = 39,700.78/x
3. Step 3: Cross multiply
   69,914.83x = 96,483.12 × 39,700.78
4. Step 4: Simplify right side
   69,914.83x = 3,830,455,273.47
5. Step 5: Solve for x
   x = 3,830,455,273.47/69,914.83
6. Step 6: Final answer
   x = 54,787.45