Finding the Fourth Proportional to 99,443.16, 149,028.39 and 52,602.48

Step by Step Solution

1. Step 1: Write the proportion equation
   99,443.16 : 149,028.39 = 52,602.48 : x
2. Step 2: Convert to fraction form
   99,443.16/149,028.39 = 52,602.48/x
3. Step 3: Cross multiply
   99,443.16x = 149,028.39 × 52,602.48
4. Step 4: Simplify right side
   99,443.16x = 7,839,262,904.41
5. Step 5: Solve for x
   x = 7,839,262,904.41/99,443.16
6. Step 6: Final answer
   x = 78,831.59