Finding the Fourth Proportional to 152,594,016.21, 210,573,384.30 and 86,518,980.18

Step by Step Solution

1. Step 1: Write the proportion equation
   152,594,016.21 : 210,573,384.30 = 86,518,980.18 : x
2. Step 2: Convert to fraction form
   152,594,016.21/210,573,384.30 = 86,518,980.18/x
3. Step 3: Cross multiply
   152,594,016.21x = 210,573,384.30 × 86,518,980.18
4. Step 4: Simplify right side
   152,594,016.21x = 18,218,594,462,687,224
5. Step 5: Solve for x
   x = 18,218,594,462,687,224/152,594,016.21
6. Step 6: Final answer
   x = 119,392,587.70