Finding the Fourth Proportional to 114,981.76, 172,152.54 and 58,700.20

Step by Step Solution

1. Step 1: Write the proportion equation
   114,981.76 : 172,152.54 = 58,700.20 : x
2. Step 2: Convert to fraction form
   114,981.76/172,152.54 = 58,700.20/x
3. Step 3: Cross multiply
   114,981.76x = 172,152.54 × 58,700.20
4. Step 4: Simplify right side
   114,981.76x = 10,105,388,528.51
5. Step 5: Solve for x
   x = 10,105,388,528.51/114,981.76
6. Step 6: Final answer
   x = 87,886.88