Finding the Fourth Proportional to 287,695.82, 431,561.00 and 88,017.93

Step by Step Solution

1. Step 1: Write the proportion equation
   287,695.82 : 431,561.00 = 88,017.93 : x
2. Step 2: Convert to fraction form
   287,695.82/431,561.00 = 88,017.93/x
3. Step 3: Cross multiply
   287,695.82x = 431,561.00 × 88,017.93
4. Step 4: Simplify right side
   287,695.82x = 37,985,105,448.64
5. Step 5: Solve for x
   x = 37,985,105,448.64/287,695.82
6. Step 6: Final answer
   x = 132,032.18