Finding the Fourth Proportional to 110,721.38, 152,803.71 and 62,990.10

Step by Step Solution

1. Step 1: Write the proportion equation
   110,721.38 : 152,803.71 = 62,990.10 : x
2. Step 2: Convert to fraction form
   110,721.38/152,803.71 = 62,990.10/x
3. Step 3: Cross multiply
   110,721.38x = 152,803.71 × 62,990.10
4. Step 4: Simplify right side
   110,721.38x = 9,625,120,973.27
5. Step 5: Solve for x
   x = 9,625,120,973.27/110,721.38
6. Step 6: Final answer
   x = 86,931.01