Finding the Fourth Proportional to 102,012.32, 153,068.70 and 45,892.10

Step by Step Solution

1. Step 1: Write the proportion equation
   102,012.32 : 153,068.70 = 45,892.10 : x
2. Step 2: Convert to fraction form
   102,012.32/153,068.70 = 45,892.10/x
3. Step 3: Cross multiply
   102,012.32x = 153,068.70 × 45,892.10
4. Step 4: Simplify right side
   102,012.32x = 7,024,644,087.27
5. Step 5: Solve for x
   x = 7,024,644,087.27/102,012.32
6. Step 6: Final answer
   x = 68,860.74