Finding the Fourth Proportional to 191,590,168.64, 287,566,941.76 and 118,586,118.72

Step by Step Solution

1. Step 1: Write the proportion equation
   191,590,168.64 : 287,566,941.76 = 118,586,118.72 : x
2. Step 2: Convert to fraction form
   191,590,168.64/287,566,941.76 = 118,586,118.72/x
3. Step 3: Cross multiply
   191,590,168.64x = 287,566,941.76 × 118,586,118.72
4. Step 4: Simplify right side
   191,590,168.64x = 34,101,447,495,498,684
5. Step 5: Solve for x
   x = 34,101,447,495,498,684/191,590,168.64
6. Step 6: Final answer
   x = 177,991,635.68