Finding the Fourth Proportional to 191,068.21, 286,605.06 and 72,746.05

Step by Step Solution

1. Step 1: Write the proportion equation
   191,068.21 : 286,605.06 = 72,746.05 : x
2. Step 2: Convert to fraction form
   191,068.21/286,605.06 = 72,746.05/x
3. Step 3: Cross multiply
   191,068.21x = 286,605.06 × 72,746.05
4. Step 4: Simplify right side
   191,068.21x = 20,849,386,025.01
5. Step 5: Solve for x
   x = 20,849,386,025.01/191,068.21
6. Step 6: Final answer
   x = 109,120.12