Finding the Fourth Proportional to 112,003,603.28, 154,564,420.37 and 64,970,189.04

Step by Step Solution

1. Step 1: Write the proportion equation
   112,003,603.28 : 154,564,420.37 = 64,970,189.04 : x
2. Step 2: Convert to fraction form
   112,003,603.28/154,564,420.37 = 64,970,189.04/x
3. Step 3: Cross multiply
   112,003,603.28x = 154,564,420.37 × 64,970,189.04
4. Step 4: Simplify right side
   112,003,603.28x = 10,042,079,609,972,076
5. Step 5: Solve for x
   x = 10,042,079,609,972,076/112,003,603.28
6. Step 6: Final answer
   x = 89,658,540.59