Finding the Fourth Proportional to 112,335.04, 155,030.52 and 64,603.36

Step by Step Solution

1. Step 1: Write the proportion equation
   112,335.04 : 155,030.52 = 64,603.36 : x
2. Step 2: Convert to fraction form
   112,335.04/155,030.52 = 64,603.36/x
3. Step 3: Cross multiply
   112,335.04x = 155,030.52 × 64,603.36
4. Step 4: Simplify right side
   112,335.04x = 10,015,492,494.55
5. Step 5: Solve for x
   x = 10,015,492,494.55/112,335.04
6. Step 6: Final answer
   x = 89,157.33