Finding the Fourth Proportional to 103,372.89, 142,670.01 and 63,109.99

Step by Step Solution

1. Step 1: Write the proportion equation
   103,372.89 : 142,670.01 = 63,109.99 : x
2. Step 2: Convert to fraction form
   103,372.89/142,670.01 = 63,109.99/x
3. Step 3: Cross multiply
   103,372.89x = 142,670.01 × 63,109.99
4. Step 4: Simplify right side
   103,372.89x = 9,003,901,875.50
5. Step 5: Solve for x
   x = 9,003,901,875.50/103,372.89
6. Step 6: Final answer
   x = 87,101.20