Finding the Fourth Proportional to 72,369.99, 99,876.12 and 45,535.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,369.99 : 99,876.12 = 45,535.50 : x
2. Step 2: Convert to fraction form
   72,369.99/99,876.12 = 45,535.50/x
3. Step 3: Cross multiply
   72,369.99x = 99,876.12 × 45,535.50
4. Step 4: Simplify right side
   72,369.99x = 4,547,908,335.20
5. Step 5: Solve for x
   x = 4,547,908,335.20/72,369.99
6. Step 6: Final answer
   x = 62,842.47