Finding the Fourth Proportional to 120,072.07, 165,626.00 and 77,036.91

Step by Step Solution

1. Step 1: Write the proportion equation
   120,072.07 : 165,626.00 = 77,036.91 : x
2. Step 2: Convert to fraction form
   120,072.07/165,626.00 = 77,036.91/x
3. Step 3: Cross multiply
   120,072.07x = 165,626.00 × 77,036.91
4. Step 4: Simplify right side
   120,072.07x = 12,759,314,538.27
5. Step 5: Solve for x
   x = 12,759,314,538.27/120,072.07
6. Step 6: Final answer
   x = 106,263.80