Finding the Fourth Proportional to 99,335.97, 148,068.16 and 91,364.37

Step by Step Solution

1. Step 1: Write the proportion equation
   99,335.97 : 148,068.16 = 91,364.37 : x
2. Step 2: Convert to fraction form
   99,335.97/148,068.16 = 91,364.37/x
3. Step 3: Cross multiply
   99,335.97x = 148,068.16 × 91,364.37
4. Step 4: Simplify right side
   99,335.97x = 13,528,154,155.46
5. Step 5: Solve for x
   x = 13,528,154,155.46/99,335.97
6. Step 6: Final answer
   x = 136,185.86