Finding the Fourth Proportional to 136,848,083.92, 205,339,569.72 and 64,069,792.72

Step by Step Solution

1. Step 1: Write the proportion equation
   136,848,083.92 : 205,339,569.72 = 64,069,792.72 : x
2. Step 2: Convert to fraction form
   136,848,083.92/205,339,569.72 = 64,069,792.72/x
3. Step 3: Cross multiply
   136,848,083.92x = 205,339,569.72 × 64,069,792.72
4. Step 4: Simplify right side
   136,848,083.92x = 13,156,063,669,174,388
5. Step 5: Solve for x
   x = 13,156,063,669,174,388/136,848,083.92
6. Step 6: Final answer
   x = 96,136,265.06