Finding the Fourth Proportional to 66,498.02, 91,753.89 and 42,308.58

Step by Step Solution

1. Step 1: Write the proportion equation
   66,498.02 : 91,753.89 = 42,308.58 : x
2. Step 2: Convert to fraction form
   66,498.02/91,753.89 = 42,308.58/x
3. Step 3: Cross multiply
   66,498.02x = 91,753.89 × 42,308.58
4. Step 4: Simplify right side
   66,498.02x = 3,881,976,795.38
5. Step 5: Solve for x
   x = 3,881,976,795.38/66,498.02
6. Step 6: Final answer
   x = 58,377.33