Finding the Fourth Proportional to 99,225.64, 148,196.21 and 89,846.92

Step by Step Solution

1. Step 1: Write the proportion equation
   99,225.64 : 148,196.21 = 89,846.92 : x
2. Step 2: Convert to fraction form
   99,225.64/148,196.21 = 89,846.92/x
3. Step 3: Cross multiply
   99,225.64x = 148,196.21 × 89,846.92
4. Step 4: Simplify right side
   99,225.64x = 13,314,973,024.17
5. Step 5: Solve for x
   x = 13,314,973,024.17/99,225.64
6. Step 6: Final answer
   x = 134,188.83