Finding the Fourth Proportional to 114,980.76, 172,151.04 and 58,699.20

Step by Step Solution

1. Step 1: Write the proportion equation
   114,980.76 : 172,151.04 = 58,699.20 : x
2. Step 2: Convert to fraction form
   114,980.76/172,151.04 = 58,699.20/x
3. Step 3: Cross multiply
   114,980.76x = 172,151.04 × 58,699.20
4. Step 4: Simplify right side
   114,980.76x = 10,105,128,327.17
5. Step 5: Solve for x
   x = 10,105,128,327.17/114,980.76
6. Step 6: Final answer
   x = 87,885.38