Finding the Fourth Proportional to 117,501,085.76, 162,155,148.28 and 64,576,833.08

Step by Step Solution

1. Step 1: Write the proportion equation
   117,501,085.76 : 162,155,148.28 = 64,576,833.08 : x
2. Step 2: Convert to fraction form
   117,501,085.76/162,155,148.28 = 64,576,833.08/x
3. Step 3: Cross multiply
   117,501,085.76x = 162,155,148.28 × 64,576,833.08
4. Step 4: Simplify right side
   117,501,085.76x = 10,471,465,943,540,208
5. Step 5: Solve for x
   x = 10,471,465,943,540,208/117,501,085.76
6. Step 6: Final answer
   x = 89,118,035.60