Finding the Fourth Proportional to 139,091.00, 208,465.47 and 64,107.07

Step by Step Solution

1. Step 1: Write the proportion equation
   139,091.00 : 208,465.47 = 64,107.07 : x
2. Step 2: Convert to fraction form
   139,091.00/208,465.47 = 64,107.07/x
3. Step 3: Cross multiply
   139,091.00x = 208,465.47 × 64,107.07
4. Step 4: Simplify right side
   139,091.00x = 13,364,109,956.71
5. Step 5: Solve for x
   x = 13,364,109,956.71/139,091.00
6. Step 6: Final answer
   x = 96,081.78