Finding the Fourth Proportional to 288,670.04, 432,897.37 and 99,076.61

Step by Step Solution

1. Step 1: Write the proportion equation
   288,670.04 : 432,897.37 = 99,076.61 : x
2. Step 2: Convert to fraction form
   288,670.04/432,897.37 = 99,076.61/x
3. Step 3: Cross multiply
   288,670.04x = 432,897.37 × 99,076.61
4. Step 4: Simplify right side
   288,670.04x = 42,890,003,897.52
5. Step 5: Solve for x
   x = 42,890,003,897.52/288,670.04
6. Step 6: Final answer
   x = 148,577.95