Finding the Fourth Proportional to 118,477.89, 163,499.31 and 70,759.17

Step by Step Solution

1. Step 1: Write the proportion equation
   118,477.89 : 163,499.31 = 70,759.17 : x
2. Step 2: Convert to fraction form
   118,477.89/163,499.31 = 70,759.17/x
3. Step 3: Cross multiply
   118,477.89x = 163,499.31 × 70,759.17
4. Step 4: Simplify right side
   118,477.89x = 11,569,075,471.17
5. Step 5: Solve for x
   x = 11,569,075,471.17/118,477.89
6. Step 6: Final answer
   x = 97,647.55