Finding the Fourth Proportional to 72,398.16, 99,895.20 and 45,525.06

Step by Step Solution

1. Step 1: Write the proportion equation
   72,398.16 : 99,895.20 = 45,525.06 : x
2. Step 2: Convert to fraction form
   72,398.16/99,895.20 = 45,525.06/x
3. Step 3: Cross multiply
   72,398.16x = 99,895.20 × 45,525.06
4. Step 4: Simplify right side
   72,398.16x = 4,547,734,973.71
5. Step 5: Solve for x
   x = 4,547,734,973.71/72,398.16
6. Step 6: Final answer
   x = 62,815.62