Finding the Fourth Proportional to 139,055.94, 208,417.05 and 64,073.16

Step by Step Solution

1. Step 1: Write the proportion equation
   139,055.94 : 208,417.05 = 64,073.16 : x
2. Step 2: Convert to fraction form
   139,055.94/208,417.05 = 64,073.16/x
3. Step 3: Cross multiply
   139,055.94x = 208,417.05 × 64,073.16
4. Step 4: Simplify right side
   139,055.94x = 13,353,938,991.38
5. Step 5: Solve for x
   x = 13,353,938,991.38/139,055.94
6. Step 6: Final answer
   x = 96,032.86